Florence Welch and Calvin Harris‏ slam Tories for using their songs without permission

Florence Welch of Florence and the Machine performs live on stage at Autodromo de Interlagos on March 13, 2016 in Sao Paulo, Brazil. Mauricio Santana/Getty Images

It looks like Theresa May and the Conservative Party did not have permission to play Florence and the Machine and Calvin Harris‏'s biggest hits at their conference.

Florence and the Machine's 'You've Got The Love' was played as the Conservative Party Conference gathered to hear Prime Minister Theresa May lay out the party's Brexit plans and receive her P45 (more on that later) on Thursday (October 4) in Manchester.

Just one problem — apparently nobody within the Tory leadership bothered to ask Florence Welch if she approved of the party co-opting her music… and now she's pissed.

"Today's use of 'You've Got The Love' at the Conservative party conference was not approved by us nor would it have been had they asked," she tweeted late Thursday.

The singer-songwriter added: "If the Conservative party could refrain from using our music in future. X"

Calvin Harris‏ took a pop at the Tories on Twitter later in the day, tweeting: "Conservative party conference playing my song was not approved - I do not support nor condone happy songs being played at such a sad event."

It's worth noting that Florence and the Machine's 'You've Got The Love' is actually a cover of Candi Staton's classic 1986 single, but there's no indication that Staton gave the Tories permission either.

The musical smackdown was similar to US president Donald Trump repeatedly being criticised by the likes of The Rolling Stones, Adele and Aerosmith for using their music on his campaign trail without permission.

Meanwhile, Theresa May had perhaps the most disastrous political speech in recent memory when she was handed a spoof P45 by prankster Simon Brodkin, AKA Lee Nelson, and battled through coughing fits while speaking to her Conservative allies on Thursday.